#A33D37#A33D37

#A33D37 is a mid, vivid red. Relative luminance 0.114; OKLCH L 50.1% C 0.137 H 26.5°. Best body text is #FFFFFF at 6.40:1 contrast (WCAG AA passes).

Color values

HEX#A33D37
RGBrgb(163, 61, 55)
HSLhsl(3, 50%, 43%)
HSVhsv(3, 66%, 64%)
CMYKcmyk(0%, 62.6%, 66.3%, 36.1%)
CIE-LABlab(40.25, 41.80, 25.87)
CIE-LCHlch(40.25, 49.16, 31.75°)
OKLaboklab(50.09% 0.1221 0.061)
OKLCHoklch(50.09% 0.137 26.5)
XYZxyz(17.4643, 11.4022, 4.8949)
Luminance0.1140 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#A33D37 #379DA3
analogous
#A33767 #A33D37 #A37337
triadic
#A33D37 #37A33D #3D37A3
tetradic
#A33D37 #67A337 #379DA3 #7337A3
square
#A33D37 #67A337 #379DA3 #7337A3
split-complementary
#A33D37 #37A373 #3767A3
monochromatic
#471B18 #752C28 #A33D37 #C55952 #D48580

Accessibility & contrast

On white

6.40
#A33D37 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.28
#A33D37 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A33D37
6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##A33D37#FFFFFF#000000##FFFFFF
##A33D371.006.403.286.40
#FFFFFF6.401.0021.001.00
#0000003.2821.001.0021.00
##FFFFFF6.401.0021.001.00

Color blindness preview

Protanopia (red-blind)
#585136
Deuteranopia (green-blind)
#716734
Tritanopia (blue-blind)
#B3273C
Achromatopsia (no color)
#5F5F5F

Design tokens & code

CSS
--color: #a33d37;
/* rgb */ color: rgb(163, 61, 55);
/* oklch */ color: oklch(50.1% 0.137 26.5);
Tailwind
colors: {
  custom: {
    50: '#c5776e',
    500: '#a33d37',
    950: '#000000',
  },
}
SCSS
$custom: #a33d37;
$custom-light: #c5776e;
$custom-dark: #000000;
JSON
{
  "hex": "#a33d37",
  "rgb": {
    "r": 163,
    "g": 61,
    "b": 55
  },
  "hsl": {
    "h": 3.333,
    "s": 49.541,
    "l": 42.745
  },
  "oklch": {
    "l": 0.50093,
    "c": 0.13651,
    "h": 26.5
  },
  "luminance": 0.114
}

Semantic roles & 50–950 ramp

primary
#A33D37
secondary
#78BABE
accent
#D1D94F
background
#FCF7F6
surface
#F9EDEB
border
#D2C8C6
text
#140907
muted
#827B7A

Preview Lab

Preview with #A33D37

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →

#A33D37 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva